Thermal insulation materials and products are an important factor affecting building energy conservation. The development and application of building thermal insulation materials have been paid more and more attention by countries all over the world. After the 1970s, foreign countries generally paid attention to the production and application of thermal insulation materials in construction, and strived to greatly reduce energy consumption, thereby reducing environmental pollution and the greenhouse effect. The foreign thermal insulation material industry has a long history. Thermal insulation materials for building energy conservation account for the vast majority, and new thermal insulation materials are constantly emerging.
Before 1980, the development of China's thermal insulation materials was very slow, but after more than 30 years of hard work in China's thermal insulation materials industry, especially after nearly 20 years of rapid development, many products have grown from nothing, from single to diversified, and their quality has been low. At high altitudes, a relatively complete industry has formed, mainly including expanded perlite, mineral wool, glass wool, foam plastics, refractory fibers, and calcium silicate insulation products.
From January to December 2006, mineral wool; expanded mineral materials; heat or sound insulation material products amounted to 13,110,148.00 kg, with a foreign exchange of 29,396,269.00 US dollars; from January to December 2006, China exported mineral cotton; expanded mineral materials; heat or sound insulation The quantity of material products is 323,873,323.00 kilograms, and the foreign exchange is 141,929,418.00 US dollars.
From January to October 2007, mineral wool; expanded mineral materials; heat or sound insulation material products amounted to 12,844,531.00 kg, with a foreign exchange of 28,133,066.00 US dollars; from January to October 2007, China exported mineral wool; expanded mineral materials; heat or sound insulation The quantity of material products is 293,114,475.00 kg, and the exchange rate is US$148,816,708.00.
Polyurethane material is an international thermal insulation material with good performance. Rigid polyurethane has many excellent properties and is widely used in building roofs, walls, ceilings, floors, doors and windows in European and American countries as thermal insulation materials. Approximately 49% of building insulation materials in developed countries such as Europe and the United States are polyurethane materials, while in China this proportion is still less than 10%. Therefore, there is still a lot of room for the development of polyurethane materials in China.
The market for energy-saving building materials in China is relatively large, especially for building insulation materials. The energy loss of Chinese houses is roughly 50% for walls; 10% for roofs; 25% for doors and windows; and 15% for basements and floors. To achieve an energy-saving rate of 50% in 2010, Chinese buildings need to renovate the exterior walls of buildings, and the market for wall insulation materials will increase substantially